Profile
定义
Spring Profiles提供了一种隔离应用程序配置的方式,并让这些配置只在特定的环境下生效。
Configuration
Spring 定义了很多种配置方式。其中比较常用的有两种,第一种是注解方式,第二种是application.yml方式。
实验
创建一个Maven项目
pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.freud.test</groupId>
<artifactId>spring-boot-06</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>spring-boot-06</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>1.5.4.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
</project>
App.java
package com.freud.test.springboot;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
/**
* @author Freud
*/
@SpringBootApplication
@RestController
public class App {
@Autowired
private Dog dog;
@Autowired
private Cat cat;
@RequestMapping("/dog")
public Dog getDog() {
Dog ret = new Dog();
BeanUtils.copyProperties(dog, ret);
return ret;
}
@RequestMapping("/cat")
public Cat getCat() {
return cat;
}
public static void main(String[] args) {
SpringApplication.run(App.class, args);
}
}
Cat.java
package com.freud.test.springboot;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
/**
* @author Freud
*/
@Component
@ConfigurationProperties(prefix = "cat")
public class Cat {
private String name;
private int age;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}
Dog.java
package com.freud.test.springboot;
/**
* @author Freud
*/
public class Dog {
private String name;
private String age;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAge() {
return age;
}
public void setAge(String age) {
this.age = age;
}
}
DogDev.java
package com.freud.test.springboot;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;
/**
* @author Freud
*/
@Configuration
@Profile("dev")
public class DogDev extends Dog {
public DogDev() {
super.setName("Jack");
super.setAge("10");
}
}
DogPrd.java
package com.freud.test.springboot;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;
/**
* @author Freud
*/
@Configuration
@Profile("prd")
public class DogPrd extends Dog {
public DogPrd() {
this.setName("Rose");
this.setAge("5");
}
}
application.yml
spring:
profiles:
active: prd
application-dev.yml
spring:
application:
name: test-06
server:
port: 9091
cat:
name: Tom
age: 2
application-prd.yml
spring:
application:
name: test-06
server:
port: 9090
cat:
name: Lucy
age: 5
项目结构
启动方式
App类main函数直接运行
通过App类的main函数直接运行,会加载classpath路径下的application.yml
,而其中配置的active profile是prd,所以application-prd.yml会生效。
App类main函数修改启动参数运行
jar方式运行
mvn clean install
java -jar target/spring-boot-06-0.0.1-SNAPSHOT.jar --spring.profiles.active=dev
查看结果
http://localhost:9091/cat
http://localhost:9091/dog
参考资料
Spring Boot Reference Guide : Spring Boot Reference Guide
spring @profile注解的使用 : spring @profile注解的使用